Current Ozone News and Events

Current Ozone News and Events, Ozone News Articles.
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Long-term exposure to low levels of air pollution increases risk of heart and lung disease
Analysis of records for more than 63 million Medicare enrollees from 2000 to 2016 finds long-term exposure to air pollution had a significant impact on the number of people hospitalized for cardiac and respiratory conditions. Researchers examined three components of air pollution: fine particulate matter, nitrogen dioxide and ozone. Even levels lower than national standards affected heart and respiratory illnesses. (2021-02-22)

42,000-year-old trees allow more accurate analysis of last Earth's magnetic field reversal
The last complete reversal of the Earth's magnetic field, the so-called Laschamps event, took place 42,000 years ago. Radiocarbon analyses of the remains of kauri trees from New Zealand now make it possible for the first time to precisely time and analyse this event and its associated effects, as well as to calibrate geological archives such as sediment and ice cores from this period. Simulations based on this show considerable effects in the Earth's atmosphere. (2021-02-19)

Magnetic reversal 42,000 years ago triggered global environmental change
Nearly 42,000 years ago, when Earth's magnetic fields reversed, this triggered major environmental changes, extinction events, and long-term changes in human behavior, a new study reports. (2021-02-18)

Researchers have proved that that ozone is effective in disinfecting Coronavirus
It is possible to destroy the virus within minutes by gaseous ozone, which can be produced synthetically indoors. The advantage of gaseous ozone over liquid disinfectants (such as alcohol and bleach) is its ability to treat entire rooms, including all objects found in it and hard-to-reach locations. (2021-02-17)

NASA-funded network tracks the recent rise and fall of ozone depleting pollutants
A short-lived resurgence in the emission of ozone depleting pollutants in eastern China will not significantly delay the recovery of Earth's protective 'sunscreen' layer, according to new research published Feb. 10 in Nature. (2021-02-17)

The vertical evolution of volatile organic compounds vary between winter and summer
Scientists have discovered that pollution concentration varies between seasons. A new study, conducted in the North China Plain, determined where volatile organic compounds (VOCs) are distributed within the vertical layers of the atmosphere, and found notable changes from winter to summer. (2021-02-15)

Emissions of banned ozone-depleting substance back on decline
After a mysterious and sharp increase between 2012 and 2017 that could be traced to eastern China global emissions of a potent (and banned) substance notorious for depleting the Earth's ozone layer - the protective barrier that absorbs the Sun's harmful UV rays - have fallen rapidly in recent years and are now as low as never before since measurements began in this region in 2008, according to new atmospheric analyses published in Nature today. (2021-02-11)

Combination of pine scent and ozone as super source of particulate emissions
Scientists have managed to figure out why conifer forests produce so many fine particles into the atmosphere. Aerosol particles are particularly abundant when ?-pinene, the molecule responsible for the characteristic pattern of pine trees reacts with atmospheric ozone. (2021-02-11)

Research shows emissions of banned ozone-depleting substance are back on the decline
Global emissions of a potent substance notorious for depleting the Earth's ozone layer -- the protective barrier which absorbs the Sun's harmful UV rays -- have fallen rapidly and are now back on the decline, according to new research. (2021-02-10)

Reductions in CFC-11 emissions put ozone recovery back on track
An international research team, including scientists from MIT, have observed a global reduction of the banned ozone-depleting chemical CFC-11, after it spiked unexpectedly several years ago. (2021-02-10)

New research reveals drivers of regionally different ozone responses to the COVID-19
Professor Ding Aijun explored global air-quality changes during COVID-19 lockdowns and regional disparities in O3 responses to emission reductions. They integrated multiple observational datasets, including global air quality monitoring network and satellite retrievals, to shed more light on the regional differences in interactions between emissions, atmospheric chemistry, and meteorological conditions. (2021-02-07)

Sensor and detoxifier in one
Ozone is a problematic air pollutant that causes serious health problems. A newly developed material not only quickly and selectively indicates the presence of ozone, but also simultaneously renders the gas harmless. As reported by Chinese researchers in Angewandte Chemie, the porous '2-in-one systems' also function reliably in very humid air. (2021-02-05)

Extreme UV laser shows generation of atmospheric pollutant
Hokkaido University scientists show that under laboratory conditions, ultraviolet light reacts with nitrophenol to produce smog-generating nitrous acid. (2021-02-02)

Improved model estimates impact of ozone on soy crops
The impact of ozone on soybean production can be predicted more accurately thanks to improvements to a computer modelling system. (2021-02-01)

First comprehensive LCA shows reprocessed medical devices cut GHG emissions in half
Hospitals could cut emissions associated with some medical device use in half by opting instead for reprocessed 'single-use' medical devices. The LCA evaluated the use of a remanufactured electrophysiology catheter compared with the use of original catheters for 16 different environmental impact categories and found that the use of reprocessed devices was superior in 13 categories. (2021-01-25)

Reactive halogen from domestic coal burning aggravates winter air pollution
During the winter in the North China Plain, scientists found high concentrations of reactive halogen gases (BrCl, HOBr, Cl2) in the atmosphere which was associated with widespread coal burning in rural areas. Halogen atoms released from BrCl and Cl2 under sunlight significantly increased the oxidative capacity, and has the potential to boost the productions of secondary aerosols - the major components of winter haze in northern China - and the toxic form of mercury. (2021-01-25)

Early COVID-19 lockdowns had less impact on urban air quality than first believed
The first COVID-19 lockdowns led to significant changes in urban air pollution levels around the world, but the changes were smaller than expected - a new study reveals. (2021-01-13)

New report reveals human, economic toll of air pollution in India
Air pollution has devastating consequences for India, accounting for 1.67 million deaths in 2019 and economic losses of $36.8 billion (US), according to a new report by an international group of scientists led by researchers from Boston College's Global Observatory on Pollution and Health, the Indian Council of Medical Research, and the Public Health Foundation of India. (2020-12-22)

The upside of volatile space weather
Although stellar flares are typically viewed as a detriment to habitability, study shows ''life might still have a fighting chance.'' Researchers find that flares drive a planets atmospheric composition to a new chemical equilibrium. (2020-12-21)

Potentially damaging surface ozone levels rose in lockdown
Less traffic on the roads during the first lockdown led to a reduction in air pollution but may have caused potentially damaging surface ozone levels to rise, a new study has revealed. (2020-12-18)

Mystery solved: new study shows link between hot and dry weather and air quality in Korea
Although air quality in Korea has been declining over the past few decades, the reasons behind the steady rise in ground-level ozone concentrations are a mystery. In a recent study, scientists from Gwangju Institute of Science and Technology, Korea, investigated the relationship between synoptic weather patterns and ozone levels, revealing another worrisome link between air pollution and climate change. (2020-12-15)

Mass extinctions of land-dwelling animals occur in 27-million-year cycle
Mass extinctions of land-dwelling animals--including amphibians, reptiles, mammals, and birds--follow a cycle of about 27 million years, coinciding with previously reported mass extinctions of ocean life, according to a new analysis published in the journal Historical Biology. (2020-12-11)

Study connects diabetes, air pollution to interstitial lung disease
People with pre-diabetes or diabetes who live in ozone-polluted areas may have an increased risk for an irreversible disease with a high mortality rate. These findings are especially important today in the midst of the COVID-19 pandemic, where there is a heightened concern for the convergence of health effects from air pollution and SARS-CoV-2 in susceptible populations. (2020-12-09)

Tire-related chemical is largely responsible for adult coho salmon deaths in urban streams
A team led by researchers at the University of Washington Tacoma, UW and Washington State University Puyallup have discovered a chemical that kills coho salmon in urban streams before the fish can spawn. (2020-12-03)

Chemical derived from car tires turns streams toxic, kills coho salmon
For Pacific Northwest coho salmon, returning to spawn in the streams and creeks near urban areas can be a death sentence, thanks to a ubiquitous additive in vehicle tires, a new study reveals. (2020-12-03)

Researchers create ingredients to produce food by 3D printing
Food engineers in Brazil and France developed gels based on modified starch for use as ''ink'' to make foods and novel materials by additive manufacturing (2020-12-03)

Ozone breaks down THC deposited on surfaces from thirdhand cannabis smoke
Second- and thirdhand tobacco smoke have received lots of attention, but much less is known about the compounds deposited on surfaces from cannabis smoke. Now, researchers reporting in ACS' Environmental Science & Technology have discovered that ozone --a component of outdoor and indoor air -- can react with tetrahydrocannabinol (THC), the psychoactive component of cannabis, on glass or cotton surfaces to produce new compounds, which they characterized for the first time. (2020-12-02)

Killer electrons in strumming sky lights
Wisps of pulsating aurora lights are a rare, yet magical sight. Now, scientists suggest they could be associated with destruction of part of the ozone. (2020-11-30)

Study: Clean Air Act saved 1.5 billion birds
US pollution regulations meant to protect humans from dirty air are also saving birds. So concludes a new continentwide study published today in The Proceedings of the National Academy of Sciences. Study authors found that improved air quality under a federal program to reduce ozone pollution may have averted the loss of 1.5 billion birds during the past 40 years. (2020-11-24)

Environmental scientists' new ozonation method treats water from antibiotic residues
Clean drinking water is considered to be one of the earth's most precious and threatened resources. Recent studies show that increasing concentrations of pharmaceuticals can be found in surface waters, which can end up in drinking water. TalTech environmental scientists are looking for ways to treat drinking water from hazardous pharmaceutical residues. (2020-11-17)

Acute exposure to higher ozone levels linked to higher risk of cardiac arrest
Analysis of data from 187,000 patients found that higher ozone levels were associated with a higher risk of out-of-hospital cardiac arrest. These findings may have important public health implications for recommendations on ozone regulations from the U.S. Environmental Protection Agency. (2020-11-09)

Urban air pollution estimates may overshadow full picture for China
For the first time, researchers have compared air pollution in urban and suburban areas across all of China. Using data from the China National Environmental Monitoring Center (CNEMC), the researchers found that one air pollutant, called particulate matter (PM2.5), may be overestimated in winter, while another pollutant, called ozone (O3), is significantly underestimated. (2020-11-05)

School absences correlate to impaired air quality
In Salt Lake City schools, absences rise when the air quality worsens, and it's not just in times of high pollution or ''red'' air quality days--even days following lower levels of pollutions saw increased absences. (2020-10-09)

Researchers find increases in nitrous oxide emissions, outpacing global predictions
The term ''greenhouse gas'' is often used interchangeably with carbon dioxide, due to its prevalence in our atmosphere - more than 80 percent of all greenhouse gas emissions, estimates the Environmental Protection Agency. But another greenhouse gas, nitrous oxide (N2O), can have effects with far greater impact. And, according to a recent study, N2O emissions are increasing at a ''devastating'' rate, faster than predictions introduced by the Intergovernmental Panel on Climate Change. (2020-10-08)

Fighting pandemics with plasma
Scientists have long known that ionized gases can kill pathogenic bacteria, viruses, and some fungi. New research presented this week at the American Physical Society's Gaseous Electronics Conference suggests that personal protective equipment--which has been in short supply throughout the COVID-19 pandemic--can be disinfected and reused. (2020-10-06)

Climate pledges 'like tackling COVID-19 without social distancing'
Current global pledges to tackle climate change are the equivalent of declaring a pandemic without a plan for social distancing, researchers say. (2020-09-24)

Unexpected wildfire emission impacts air quality worldwide
During wildfires, nitrous acid plays a leading role--spiking to levels significantly higher than scientists expected, driving increased ozone pollution and harming air quality, according to a new study led by the University of Colorado Boulder and the Belgian Institute for Space Aeronomy. (2020-09-21)

Detecting soil-surface ozone early can help prevent damage to grapes and apples
Farmers and fruit growers report that climate change is leading to increased ozone concentrations on the soil surface in their fields and orchards, which can cause irreversible plant damage, reduce crop yields and threaten the food supply. Trisha Andrew and colleagues at UMass Amherst, writing in Science Advances, show that her lab's method of vapor-depositing conducting polymer ''tattoos'' on plant leaves can accurately detect and measure such ozone damage, even at low exposure levels. (2020-09-08)

Air pollution renders flower odors unattractive to moths
Researchers from the Max Planck Institute for Chemical Ecology in Jena, Germany, and the University of Virginia, USA, showed that tobacco hawkmoths lost attraction to the scent of their preferred flowers when that scent had been altered by ozone. This oxidizing pollutant thus disturbs the chemical communication between a plant and its pollinator. However, when given the chance, hawkmoths quickly learn that an unpleasantly polluted scent may lead to nutritious nectar. (2020-09-04)

Wearable, portable invention offers options for treating antibiotic-resistant infections
About 6 million people in the United States are affected by chronic wounds. Now, a team of innovators from Purdue University has developed a wearable solution that allows a patient to receive treatment without leaving home. (2020-09-03)

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